Finding the Fourth Proportional to 11,069.18, 16,603.88 and 3,172.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,069.18 : 16,603.88 = 3,172.62 : x
2. Step 2: Convert to fraction form
   11,069.18/16,603.88 = 3,172.62/x
3. Step 3: Cross multiply
   11,069.18x = 16,603.88 × 3,172.62
4. Step 4: Simplify right side
   11,069.18x = 52,677,801.77
5. Step 5: Solve for x
   x = 52,677,801.77/11,069.18
6. Step 6: Final answer
   x = 4,758.96